Thank your all for all your suggestions. I am really grateful to you all. Thanks Virg
On Thu, Jun 27, 2013 at 6:51 AM, Mark Derricutt <[email protected]> wrote: > Ron Wheeler wrote: > >> So always compile with 1.5 and make a package for 1.5 and copy it to >> files with 1.6 and 1.7 names. >> If the managers don't know how Java JVM works they will be impressed by >> how fast you can deliver new packages in so many operating systems and >> really impressed at the speed with which you can bring out 1.8 support. >> > Well yes generally - however this week I had code that when compiled ON > JDK7 but targetting JDK6 worked fine, but targetting JDK7 failed to even > compile. > > This was the in part my discovery of this new javac error message: > > [ERROR] .../TransactionFilter.java:[**112,11] exception javax.validation.* > *ConstraintViolationException has already been caught > > turns out, javac now enforces/tracks the loss of visibility in catch > blocks, in this case, above the ConstraintViolationException catch block > was one for ValidationException , this is ConstraintViolationExceptions > super class. > > However, I was pointing out the just "compiling to JDK5" doesn't really > help much, but you are correct and I got my terms backwards - I refer to > this quote that I posted on my own darn blog ;p > > http://www.theoryinpractice.**net/post/18036749530/java-has-** > never-been-future-compatible-**and-will<http://www.theoryinpractice.net/post/18036749530/java-has-never-been-future-compatible-and-will> > > Java has never been future compatible, and will never be. I just want to > make sure that is clear, because if you've been under the impression that > it was 100% future compatible or that there was an implied contract I can > assure you that is not the case. There are numerous times in each release > where fixing a bug will break somebody. It is just the nature, or physics, > of the situation. > -- Richard Bair on bundling a JRE per-application for desktop applications. > > If you want to be JDK5 compatible, compile for, and WITH JDK5. > >
